\documentclass[a4paper,11pt]{article}

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% ========
\usepackage[utf8]{inputenc}
\usepackage{amssymb}
\usepackage{verbatim} % for \begin{comment} ... \end{comment}
\usepackage{url}
\usepackage{subfig}
\usepackage[spanish]{babel}
\usepackage{epsfig}
\usepackage{graphicx}
\usepackage{color}

% Commands
% ======== 
\newcommand{\nc}{\newcommand}

%opening
\title{Constraint-Based Scheduling Framework}
\author{José Luzón Martín}

\begin{document}

\maketitle

% Abstract
% ========
%\begin{abstract}

%\end{abstract}

\newpage

% Sections
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\section{Programación con Restricciones}
\label{sec:CP}
\input{cp}

\section{Planificación Basada en Restricciones}
\label{sec:CBS}
\input{cbs}

\section{Proyecto}
\label{sec:proyecto}
\input{proy}

\section{Herramientas}
\label{sec:herramientas}
\input{tools}

\section{Motivación personal}
\label{sec:motivacion}
\input{motivacion}

\newpage

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\bibliography{biblio}

\end{document}
